air bleeding SUZUKI SWIFT 2000 1.G RG413 Service Workshop Manual

MAINTENANCE AND LUBRICATION 0B-13
BRAKE DRUMS AND SHOES (REAR)
INSPECTION
1) Remove wheel and brake drum.
2) Check rear brake drums and brake linings for excessive
wear and damage, while wheels and drums are removed. At
the same time, check wheel cylinders for leaks. Replace
these parts as necessary.
For details, refer to “BRAKE DRUM” in Section 5.
BRAKE HOSES AND PIPES
INSPECTION
Perform this inspection where these is enough light and use a
mirror as necessary.
Check brake hoses and pipes for proper hookup, leaks,
cracks, chafing and other damage.
Check that hoses and pipes are clear of sharp edges and
moving parts.
Repair or replace any of these parts as necessary.
BRAKE FLUID
REPLACEMENT
Change brake fluid as follows.
Drain existing fluid from brake system completely, fill system with
specified fluid and carry out air purge operation.
For air purging procedure, refer to “BLEEDING BRAKES” in Sec-
tion 5.
BRAKE LEVER AND CABLE
INSPECTION
1) Inspect brake cable for damage and smooth movement.
Replace cable if it is in deteriorated condition.
CAUTION:
After replacing any brake pipe or hose, be sure to carry
out air purge operation.

BRAKES 5-1
6F1
6F2
6G
6H
6K
7A
7A1
7B1
7C1
7D
7E
7F
8A
8B
8C
5
9
10
10A
10B
SECTION 5
BRAKES
CONTENTS
GENERAL DESCRIPTION ................................ 5-2
DIAGNOSIS ....................................................... 5-4
ROAD TESTING BRAKES ............................. 5-4
BRAKE FLUID LEAKS ................................... 5-4
SUBSTANDARD OR CONTAMINATED
BRAKE FLUID ................................................ 5-4
DIAGNOSIS TABLE ....................................... 5-5
BRAKE PEDAL FREE HEIGHT
ADJUSTMENT ............................................... 5-8
BRAKE PEDAL PLAY INSPECTION ............. 5-8
STOP LIGHT SWITCH ADJUSTMENT.......... 5-8
EXCESSIVE PEDAL TRAVEL
INSPECTION ................................................. 5-9
FRONT BRAKE PAD INSPECTION .............. 5-9
BRAKE DISC INSPECTION........................... 5-9
PARKING BRAKE INSPECTION AND
ADJUSTMENT ............................................. 5-10
BOOSTER OPERATION INSPECTION....... 5-11
FLUID PRESSURE TEST (IF EQUIPPED
WITH LSPV) ................................................ 5-12
MASTER CYLINDER AND BRAKE FLUID
LEVEL INSPECTION ................................... 5-14
BRAKE HOSE AND PIPE INSPECTION ..... 5-15
HOSE ....................................................... 5-15
PIPE ......................................................... 5-15
ON-VEHICLE SERVICE .................................. 5-15AIR BLEEDING OF BRAKE SYSTEM ......... 5-15
FRONT BRAKE ........................................... 5-17
BRAKE PAD............................................. 5-17
CALIPER ASSEMBLY ............................. 5-19
BRAKE DISC ........................................... 5-23
REAR BRAKE .............................................. 5-25
BRAKE DRUM ......................................... 5-26
BRAKE SHOE .......................................... 5-29
WHEEL CYLINDER ................................. 5-30
BRAKE BACK PLATE (FOR 2WD
VEHICLE)................................................. 5-31
BRAKE BACK PLATE (FOR 4WD
VEHICLE)................................................. 5-33
MASTER CYLINDER ................................... 5-33
MASTER CYLINDER RESERVOIR ......... 5-33
MASTER CYLINDER ASSEMBLY........... 5-34
BRAKE BOOSTER ...................................... 5-38
BRAKE HOSE/PIPE .................................... 5-41
FRONT BRAKE HOSE/PIPE ................... 5-41
REAR BRAKE HOSE/PIPE...................... 5-44
PARKING BRAKE CABLE ........................... 5-46
LSPV (LOAD SENSING PROPORTIONING
VALVE) ASSEMBLY (IF EQUIPPED).......... 5-48
REQUIRED SERVICE MATERIAL.................. 5-50
SPECIAL TOOL .............................................. 5-50

NOTE:
All front fasteners are important attaching parts in that they could affect the performance of vital parts
and systems, and/or could result in major repair expense. They must be replaced with one of same
part number or with an equivalent part if replacement becomes necessary. Do not use a replacement
part of lesser quality or substitute design. Torque values must be used as specified during reassem-
bly to assure proper retention of all parts. There is to be no welding as it may result in extensive dam-
age and weakening of the metal.

BRAKES 5-9
EXCESSIVE PEDAL TRAVEL INSPECTION
1) Start engine.
2) Depress brake pedal a few times.
3) With brake pedal depressed with approximately 30 kg (66
lbs) load, measure brake pedal to wall (dash panel silencer)
clearance “a”.
If clearance “a” is less than specification, the most possible
cause is either rear brake shoes are worn out beyond limit or
air is in lines.
Should clearance “a” remain less than specification even
after replacement of brake shoes and bleeding of system,
other possible but infrequent cause is malfunction of rear
brake shoe adjusters or booster push rod length out of
adjustment.
–Bleed brake system. Refer to “AIR BLEEDING OF BRAKE
SYSTEM”.
–Remove brake drums for adjuster inspection. (Refer to
“REAR BRAKE”.) If defective, correct or replace.
Clearance “a” between brake pedal and dash panel
silencer
LH steering vehicle : over 135 mm (5.32 in.)
RH steering vehicle : over 140 mm (5.52 in.)
FRONT BRAKE PAD INSPECTION
Inspect pad linings (1) periodically according to maintenance
schedule whenever wheels are removed (for tire rotation or other
reason). Take a look through each end (or hole) of caliper and
check lining thickness of outside and inside pads.
If lining is worn and its thickness (“a” in figure) is less than limit, all
pads must be replaced at the same time.
Front brake pad thickness “a” (lining thickness)
Standard : 10 mm (0.40 in.)
Limit : 2 mm (0.08 in.)
BRAKE DISC INSPECTION
Refer to “BRAKE DISC” for inspection point and procedure.
“a”

BRAKES 5-15
BRAKE HOSE AND PIPE INSPECTION
HOSE
The brake hose assembly should be checked for road hazard
damage, for cracks and chafing of outer cover, for leaks and blis-
ters. A light and mirror may be needed for an adequate inspec-
tion. If any of above conditions are observed on brake hose, it is
necessary to replace it.
PIPE
Inspect the pipe for damage, cracks, dents and corrosion. If any
defect is found, replace it.
ON-VEHICLE SERVICE
AIR BLEEDING OF BRAKE SYSTEM
Bleeding operation is necessary to remove air whenever it
entered hydraulic brake system.
Hydraulic lines of brake system are based on the diagonal split
system. When a brake pipe or hose was disconnected at the
wheel, bleeding operation must be performed at both ends of the
line of the removed pipe or hose. When any joint part of the mas-
ter cylinder of other joint part between the master cylinder and
each brake (wheel) was removed, the hydraulic brake system
must be bled at all 4 wheel brakes.
CAUTION:
Brake fluid is extremely damaging to paint. If fluid should
accidentally touch painted surface, immediately wipe
fluid from paint and clean painted surface.
NOTE:
Perform bleeding operation starting with wheel cylinder
farthest from master cylinder and then at front caliper of
the same brake line. Do the same on the other brake line.
1. Right brake caliper 4. Left wheel cylinder
2. Left brake caliper A : FRONT
3. Right wheel cylinder B : REAR

5-16 BRAKES
1) Fill master cylinder reservoir with brake fluid and keep at
least one-half full of fluid during bleeding operation.
2) Remove bleeder plug cap.
Attach a vinyl tube (1) to bleeder plug, and insert the other
end into container (2).
3) Depress brake pedal several times, and then while holding it
depressed, loosen bleeder plug about one-third to one-half
turn.
4) When fluid pressure in cylinder is almost depleted, retighten
bleeder plug.
5) Repeat this operation until there are no more air bubbles in
hydraulic line.
6) When bubbles stop, depress and hold brake pedal and
tighten bleeder plug.
Tightening torque
Front bleeder plug : 11.0 N·m (1.1 kg-m, 8.0 lb-ft)
Rear bleeder plug : 8.0 N·m (0.8 kg-m, 6.0 lb-ft)
7) Then attach bleeder plug cap.
8) After completing bleeding operation, apply fluid pressure to
pipe line and check for leakage.
9) Replenish fluid into reservoir up to specified level.
10) Check brake pedal for sponginess. If found spongy, repeat
entire procedure of bleeding.
MAX
MIN
MAX
MIN

BRAKES 5-31
INSTALLATION
1) Take off bleeder plug cap from brake pipe and connect pipe
to wheel cylinder (1) just enough to prevent fluid from leak-
ing.
2) Install wheel cylinder (1) to brake back plate (2) to specified
torque.
Tightening torque
Cylinder mounting bolts (a) : 10 N·m (1.0 kg-m, 7.5 lb-ft)
3) Tighten flare nut (3) of brake pipe to specified torque.
Tightening torque
Rear brake pipe flare nut (b) : 16 N·m (1.6 kg-m, 11.5 lb-ft)
4) Install bleeder plug cap.
5) Install brake shoes. (Refer to “BRAKE SHOE”.)
6) Install brake drum. (Refer to “BRAKE DRUM”.)
7) Fill reservoir with brake fluid and bleed brake system. (For
bleeding operation referring to “AIR BLEEDING OF BRAKE
SYSTEM”.)
8) Upon completion of all jobs, depress brake pedal with about
30 kg (66 lbs) load 3 to 5 times so as to obtain proper drum-
to-shoe clearance.
Adjust parking brake cable.
9) Install wheel and tighten wheel nuts to specified torque.
Tightening torque
Wheel nuts : 85 N·m (8.5 kg-m, 61.5 lb-ft)
10) Check to ensure that brake drum is free from dragging and
proper braking is obtained. Then remove vehicle from hoist
and perform brake test (foot brake and parking brake).
11) Check each installed part for oil leakage.
BRAKE BACK PLATE (FOR 2WD VEHICLE)
REMOVAL
1) Remove brake drum referring to “BRAKE DRUM”.
2) Remove brake shoe referring to “BRAKE SHOE”.
3) Remove wheel cylinder referring to “WHEEL CYLINDER”.
4) Remove parking brake cable securing clip (1) and discon-
nect brake cable (2) from brake back plate (3).

BRAKES 5-41
BRAKE HOSE/PIPE
FRONT BRAKE HOSE/PIPE
REMOVAL
1) Raise and support vehicle properly. Remove tire and wheel.
2) Clean dirt and foreign material from both flexible hose end and pipe end fittings.
3) Remove brake flexible hose or pipe.
INSTALLATION
Reverse brake flexible hose installation procedure, noting the followings.
Make sure that steering wheel is in straight-forward position and flexible hose has not twist or kink.
Check to make sure that flexible hose doesn’t contact any part of suspension, both in extreme right and
extreme left turn conditions. If it does at any point, remove and correct. Fill and maintain brake fluid level in
reservoir.
Bleed brake system. Refer to “AIR BLEEDING OF BRAKE SYSTEM”.
Perform brake test and check installed part for fluid leakage. NOTE:
This operation is not necessary when removing pipes connecting master cylinder.

5-44 BRAKES
REAR BRAKE HOSE/PIPE
REMOVAL
1) Raise and support vehicle properly. Remove tire and wheel.
2) Clean dirt and foreign material from both flexible hose end and pipe end fittings.
3) Remove brake flexible hose or pipe.
INSTALLATION
Reverse brake flexible hose installation procedure, nothing the followings.
Fill and maintain brake fluid level in reservoir.
Bleed brake system. Refer to “AIR BLEEDING OF BRAKE SYSTEM”.
Perform brake test and check each installed part for fluid leakage.
Never reuse protector nut once removed. Be sure to use a new one.
Install clamps properly referring to figure below and tighten bolts.
When installing hose, make sure that it has no twist or kink.

BRAKES 5-49
INSTALLATION
1) Install LSPV assembly with spring to vehicle body.
2) Torque each bolt and nut (1) to specification as indicated
respectively in figure.
Special tool
(A) : 09950-78230 (10 x 11 mm)
Tightening torque
LSPV adjust nut (a) : 25 N·m (2.5 kg-m, 18.0 lb-ft)
Brake pipe flare nuts (b) : 16 N·m (1.6 kg-m, 11.5 lb-ft)
3) Fill reservoir with specified fluid and bleed air from brake
system.
4) After bleeding air, check that LSPV is installed properly
referring to following “INSPECTION & ADJUSTMENT”.
INSPECTION AND ADJUSTMENT
1) Confirm the following before inspection and adjustment.
Fuel tank is filled with fuel fully.
Vehicle is equipped with spare tire, tools, jack and jack han-
dle.
Vehicle is free from any other load.
Vehicle is placed on level floor.
2) Push up LSPV lever with finger till it stops and measure
length of coil spring (“a” in figure).
3) Spring length “a” should be as specified.
Spring length “a”
2WD : 144 mm (5.67 in.)
4WD : 148 mm (5.83 in.)
4) If it isn’t, adjust it to specification by changing spring position
as shown in figure. After adjustment, tighten nut (1) to speci-
fied torque.
Tightening torque
LSPV adjust nut (a) : 25 N·m (2.5 kg-m, 18.0 lb-ft)
5) Confirm fluid pressure referring to “Fluid Pressure Test”.
1, (a)
(b)
NOTE:
Check to make sure that LSPV body and brake pipe joints
are free from fluid leakage. Replace defective parts, if
any.
1, (a)
“a”